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Shipping and Handling Costs	9 Months Ended
Shipping and Handling Costs	Sep. 28, 2012
Shipping And Handling Costs [Abstract]
Shipping and Handling Costs	Shipping and Handling Costs All shipping and handling amounts billed to a customer in a sales transaction are classified as revenue. Shipping and handling costs associated with storage and handling of finished goods and shipments to customers are included in cost of sales and totaled $40.6 million and $34.5 million, respectively, for the three fiscal months ended September 28, 2012 and September 30, 2011 and $109.6 million and $104.2 million, respectively, for the nine fiscal months ended September 28, 2012 and September 30, 2011.